Digital electronic commutator for radio direction finding system

Details Digital electronic commutator for radio direction finding system Digital electronic commutator for radio direction finding system

1970-02-26

1980-08-05

Wilbur, Maynard R.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343118, G01S 320

Patent

active

042164761

ABSTRACT:
An array of antennas is sequentially sampled by digital commutation means provide a synchronous display of a synthesized antenna array pattern of reception on a cathode ray tube indicator. The commutation means and digital means for generating sine and cosine signals operate from a common oscillator source. Digital means are provided to advance or delay the phase relation of the pattern or of a strobe line with respect to the CRT sweep to effect rotation thereof into azimuthal alignment. Automatic bearing readout is digitally accomplished when alignment is achieved.

REFERENCES:
patent: 3054105 (1962-09-01), Steiner et al.
patent: 3093828 (1963-06-01), Stutz
patent: 3099009 (1963-07-01), Stryker, Jr.
patent: 3508266 (1970-04-01), Martin

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